500 kV紧凑型线路绝缘子串带电更换方法探讨

Discussion on Live Replacement Method of Insulator String for 500 kV Compact Line

针对500 kV紧凑型线路导线布局紧凑,塔头尺寸甚小,上相等电位带电作业开展困难的局面,探讨了地电位带电更换的方式,并研制了配套的操作杆、提线器及相关专用卡具。现场实际应用表明,采用地电位更换方式和所研制的配套工器具能够安全、高效地完成紧凑型线路直线塔上相绝缘子串的更换工作,给类似工作的开展提供了借鉴。

In view of the fact that the conductor layout of 500 kV compact line is of compact size,the size of tower head is very small,and it is difficult to carry out iso-potential live work,this paper discusses the way of ground potential live replacement,and develops the matched operating pole,wire lifter and relevant special clamps.The field application shows that the replacement of phase insulator strings on the compact line tower can be completed safely and efficiently by using the ground potential replacement method and the developed supporting tools and equipment,which provides a reference for similar work.